May weather forecast
Ostrava, Czech Republic

May ushers in the beginning of the warm season in Ostrava. Going up to 19°C (66.2°F), the temperature creates a pleasant atmosphere ideal for outdoor activities. Compared to the previous month, more sunlight saturates the city, ripening foliage and boosting natural beauty. While rainfall becomes more frequent, the warmth offset by cool breezes offers one the best weather periods in the city. Servers in local cafés start setting up tables outside as residents enjoy the bright, cheery weather.

Temperature

With the onset of May, Ostrava's weather sees a temperature rise, transitioning from 14°C (57.2°F) in April to a still refreshing 19°C (66.2°F). Ostrava experiences a nighttime temperature average of 8°C (46.4°F) during May.

Rainfall

In Ostrava, in May, it is raining for 15 days, with typically 82mm (3.23") of accumulated precipitation. In Ostrava, during the entire year, the rain falls for 162 days and collects up to 684mm (26.93") of precipitation.

Daylight

In Ostrava, the average length of the day in May is 15h and 25min.
On the first day of the month, sunrise is at 05:22 and sunset at 20:05. On the last day of May, sunrise is at 04:43 and sunset at 20:45 CEST.

Sunshine

The months with the most sunshine are May through August, with an average of 7h of sunshine.

UV index

In Ostrava, the average daily maximum UV index in May is 6. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: In May, a daily maximum UV index of 6 leads to the following instructions:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.